<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
	"http://www.w3.org/TR/html4/strict.dtd">
<html lang="en-US">
<head>
	<title></title>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
	<style type="text/css">

	@font-face {
		font-family: "MarkA";
		src: url(../fonts/markA.ttf);
	}

	body { font-family: "MarkA"; }

	</style>
</head>
<body>

<div id="t" style="visibility:hidden; width: -moz-fit-content">ABC</div>
<script>
  // Force a reflow to make sure we start our font download now
  document.body.offsetWidth;
  window.addEventListener("load",
    function() {
      var n = document.getElementById("t");
      var w = document.defaultView.getComputedStyle(n, "").width;
      var h = document.defaultView.getComputedStyle(n, "").height;
      var d = document.createElement("div");
      d.style.width = w;
      d.style.height = h;
      d.style.backgroundColor = "green";
      n.parentNode.removeChild(n);
      document.body.appendChild(d);
    },
    false);
</script>
</body>
</html>